A couple of years ago I found a Variable Speed Pump whose 8-speed selection could be accomplished externally via a 3-bit digital interface.
I began intermittently designing a custom DIY automation controller around that pump, and am now at the point where I want to buy it, but cannot find it.
All I find are VSPs using proprietary protocols over a RS-485 interface. Is anyone familiar with the pump I previously found and, if so, whether is still available?
I began intermittently designing a custom DIY automation controller around that pump, and am now at the point where I want to buy it, but cannot find it.
All I find are VSPs using proprietary protocols over a RS-485 interface. Is anyone familiar with the pump I previously found and, if so, whether is still available?